source: trip-planner-front/node_modules/webpack/lib/wasm-sync/WebAssemblyModulesPlugin.js@ 571e0df

/*
        MIT License http://www.opensource.org/licenses/mit-license.php
        Author Tobias Koppers @sokra
*/

"use strict";

const Generator = require("../Generator");
const WebAssemblyExportImportedDependency = require("../dependencies/WebAssemblyExportImportedDependency");
const WebAssemblyImportDependency = require("../dependencies/WebAssemblyImportDependency");
const { compareModulesByIdentifier } = require("../util/comparators");
const memoize = require("../util/memoize");
const WebAssemblyInInitialChunkError = require("./WebAssemblyInInitialChunkError");

/** @typedef {import("webpack-sources").Source} Source */
/** @typedef {import("../Compiler")} Compiler */
/** @typedef {import("../Module")} Module */
/** @typedef {import("../ModuleTemplate")} ModuleTemplate */
/** @typedef {import("../javascript/JavascriptModulesPlugin").RenderContext} RenderContext */

const getWebAssemblyGenerator = memoize(() =>
        require("./WebAssemblyGenerator")
);
const getWebAssemblyJavascriptGenerator = memoize(() =>
        require("./WebAssemblyJavascriptGenerator")
);
const getWebAssemblyParser = memoize(() => require("./WebAssemblyParser"));

class WebAssemblyModulesPlugin {
        constructor(options) {
                this.options = options;
        }

        /**
         * Apply the plugin
         * @param {Compiler} compiler the compiler instance
         * @returns {void}
         */
        apply(compiler) {
                compiler.hooks.compilation.tap(
                        "WebAssemblyModulesPlugin",
                        (compilation, { normalModuleFactory }) => {
                                compilation.dependencyFactories.set(
                                        WebAssemblyImportDependency,
                                        normalModuleFactory
                                );

                                compilation.dependencyFactories.set(
                                        WebAssemblyExportImportedDependency,
                                        normalModuleFactory
                                );

                                normalModuleFactory.hooks.createParser
                                        .for("webassembly/sync")
                                        .tap("WebAssemblyModulesPlugin", () => {
                                                const WebAssemblyParser = getWebAssemblyParser();

                                                return new WebAssemblyParser();
                                        });

                                normalModuleFactory.hooks.createGenerator
                                        .for("webassembly/sync")
                                        .tap("WebAssemblyModulesPlugin", () => {
                                                const WebAssemblyJavascriptGenerator =
                                                        getWebAssemblyJavascriptGenerator();
                                                const WebAssemblyGenerator = getWebAssemblyGenerator();

                                                return Generator.byType({
                                                        javascript: new WebAssemblyJavascriptGenerator(),
                                                        webassembly: new WebAssemblyGenerator(this.options)
                                                });
                                        });

                                compilation.hooks.renderManifest.tap(
                                        "WebAssemblyModulesPlugin",
                                        (result, options) => {
                                                const { chunkGraph } = compilation;
                                                const { chunk, outputOptions, codeGenerationResults } = options;

                                                for (const module of chunkGraph.getOrderedChunkModulesIterable(
                                                        chunk,
                                                        compareModulesByIdentifier
                                                )) {
                                                        if (module.type === "webassembly/sync") {
                                                                const filenameTemplate =
                                                                        outputOptions.webassemblyModuleFilename;

                                                                result.push({
                                                                        render: () =>
                                                                                codeGenerationResults.getSource(
                                                                                        module,
                                                                                        chunk.runtime,
                                                                                        "webassembly"
                                                                                ),
                                                                        filenameTemplate,
                                                                        pathOptions: {
                                                                                module,
                                                                                runtime: chunk.runtime,
                                                                                chunkGraph
                                                                        },
                                                                        auxiliary: true,
                                                                        identifier: `webassemblyModule${chunkGraph.getModuleId(
                                                                                module
                                                                        )}`,
                                                                        hash: chunkGraph.getModuleHash(module, chunk.runtime)
                                                                });
                                                        }
                                                }

                                                return result;
                                        }
                                );

                                compilation.hooks.afterChunks.tap("WebAssemblyModulesPlugin", () => {
                                        const chunkGraph = compilation.chunkGraph;
                                        const initialWasmModules = new Set();
                                        for (const chunk of compilation.chunks) {
                                                if (chunk.canBeInitial()) {
                                                        for (const module of chunkGraph.getChunkModulesIterable(chunk)) {
                                                                if (module.type === "webassembly/sync") {
                                                                        initialWasmModules.add(module);
                                                                }
                                                        }
                                                }
                                        }
                                        for (const module of initialWasmModules) {
                                                compilation.errors.push(
                                                        new WebAssemblyInInitialChunkError(
                                                                module,
                                                                compilation.moduleGraph,
                                                                compilation.chunkGraph,
                                                                compilation.requestShortener
                                                        )
                                                );
                                        }
                                });
                        }
                );
        }
}

module.exports = WebAssemblyModulesPlugin;